Airmax MaxAir 100 LV, Инструкция по установке и обслуживанию

Страница: 24 / 48

Page 24
1-stage Wiring: Single stage operation can still be achieved by wiring only W1
from the thermostat to W1 of the DCC7235 for LOW airflow, or W2 from the
thermostat to W2 of the DCC7235 for HIGH airflow. W1 and W2 can also be
connected (jumpered) for HIGH Airflow in 1-stage systems.
For convenience, when a single stage system is applied, an on-board SHUNT
connects Y1 to Y2 for operation at the Y2 airflow whenever any Y is active.
NOTE: THE SHUNT MUST BE REMOVED WHEN A TWO STAGE COMPRESSOR SYSTEM IS
APPLIED FOR HEATING OR COOLING.
2. OPERATING with a HEAT PUMP ("Y" MUST BE Active for COMPRESSOR
Heating)
D & W1 active : When "1&2-Stg HT" and D AND W1 are active, the selected
output PWM % shown under W1 in the selected TABLE A and B, above, occurs
after a 15 sec delay after any W first becomes active. A prior flow value (PWM%)
selected by either Y will be replaced by the value selected by either W .
D & W2 active : When "1&2-Stg HT" and D AND W2 are active, the selected
output PWM % shown under W2 in the selected TABLE A and B occurs after a
15 sec time delay after the first occurrence of W1 or W2 . A prior flow value
(PWM%) selected by either Y will be replaced by the value selected by either W .
NOTE: WHEN EITHER OR BOTH W1 AND W2 ARE ACTIVE AND D IS NOT ACTIVE, THE OUTPUT
WILL BE PER THE COLUMN (W1 OR W2) & NOT D IN TABLES A AND B.
2.
“TIMED 2-STAGE HEAT” SWITCH (SW1-1) "ON"
1st stage -- D & W1 or D & W2 active : When the switch is in this position and either W1 &
D or W2 & D are active, the volume command (PWM %) shown under D & W1 in the
selected TABLE A or B occurs after a 15 sec time delay from when W1 or W2 became
active.
TIMED STAGING : When either D & W1 or D & W2 remain active for 5 minutes, the
volume command (PWM %) transitions to the selected values shown under D & W2 in the
selected TABLE A or B, above, to give the high volume output.
When W1 or W2 is active and D is NOT active, the Output will be per the column
(W1
or W2) & NOT D in Tables A and B.
TIMED STAGING WIRING : Either an energized W1 or W2 alone, or W1 and W2 together
(for example, by connecting them together with an external shunt) will activate the timed 2-
stage output
.
NOTE: POWER TO THE CONTROLLER MUST BE CYCLED FOR THE 1&2-STG HT AND TIMED 2-
STG HT SWITCH STATE TO BE RECOGNIZED. THE SELECTED STATE WILL BECOME
EFFECTIVE AFTER POWER IS RESTORED.
C.
PUMP TIMER RELAY ON-OFF (ENABLE/DISABLE)
a.
“PUMP TMR ON”:
The Pump RELAY Timer functions normally and will activate per
paragraph B. a., above.
b.
“PUMP TMR OFF”:
The Pump RELAY Timer is disabled and will not activate.
D.
NORMAL &TEST MODE TIMING (SW3-2 "TEST"):
NOTE: THIS SWITCH SELECTS NORMAL OPERATION OR THE TEST MODE